Summary of Restructuring and Other Charges Activity by Segment (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 27, 2013		Sep. 28, 2012	Sep. 27, 2013		Sep. 28, 2012
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 19.2			$ 21.9
Restructuring expense	0.1		3.3	35.3		110.2
Cash Payments	(7.3)			(30.8)		(31.2)
Other Activities	(1.3)	[1]		(15.7)	[1]
Ending Balance	10.7			10.7
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Beginning Balance	9.3
Restructuring expense	0.8			37.1
Cash Payments	(3.1)			(16.0)
Other Activities	(1.3)	[1]		(15.4)	[1]
Ending Balance	5.7			5.7
2013 Restructuring Plan | Optical Segment
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0.3
Restructuring expense	(0.1)			0.9
Cash Payments	(0.2)			(0.9)
2013 Restructuring Plan | Data segment
Restructuring Cost and Reserve [Line Items]
Beginning Balance	9.0
Restructuring expense	0.9			35.8
Cash Payments	(2.9)			(14.7)
Other Activities	(1.3)	[1]		(15.4)	[1]
Ending Balance	5.7			5.7
2013 Restructuring Plan | Services segment
Restructuring Cost and Reserve [Line Items]
Restructuring expense				0.4
Cash Payments				(0.4)
2012 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Beginning Balance	6.1			16.8
Restructuring expense	(0.7)			(2.4)
Cash Payments	(3.0)			(11.7)
Other Activities				(0.3)	[1]
Ending Balance	2.4			2.4
2012 Restructuring Plan | Optical Segment
Restructuring Cost and Reserve [Line Items]
Beginning Balance	1.4			3.9
Restructuring expense	(0.4)			(0.8)
Cash Payments	(0.4)			(2.5)
Other Activities	0.1	[1]		0.1	[1]
Ending Balance	0.7			0.7
2012 Restructuring Plan | Data segment
Restructuring Cost and Reserve [Line Items]
Beginning Balance	2.7			8.6
Restructuring expense	(0.2)			(1.9)
Cash Payments	(1.6)			(5.5)
Other Activities	(0.1)	[1]		(0.4)	[1]
Ending Balance	0.8			0.8
2012 Restructuring Plan | Access segment
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0.7			1.5
Restructuring expense	(0.2)			(0.3)
Cash Payments	(0.1)			(0.8)
Ending Balance	0.4			0.4
2012 Restructuring Plan | Services segment
Restructuring Cost and Reserve [Line Items]
Beginning Balance	1.3			2.8
Restructuring expense	0.1			0.6
Cash Payments	(0.9)			(2.9)
Ending Balance	0.5			0.5
Previous Restructuring Plans
Restructuring Cost and Reserve [Line Items]
Beginning Balance	3.8			5.1
Restructuring expense				0.6
Cash Payments	(1.2)			(3.1)
Ending Balance	2.6			2.6
Previous Restructuring Plans | Optical Segment
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0.7			0.6
Restructuring expense	(0.2)			0.1
Cash Payments	(0.3)			(0.5)
Ending Balance	0.2			0.2
Previous Restructuring Plans | Data segment
Restructuring Cost and Reserve [Line Items]
Beginning Balance	2.4			3.1
Restructuring expense	0.1			0.4
Cash Payments	(0.6)			(1.6)
Ending Balance	1.9			1.9
Previous Restructuring Plans | Access segment
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0.7			1.4
Restructuring expense	0.1			0.1
Cash Payments	(0.3)			(1.0)
Ending Balance	$ 0.5			$ 0.5

[1] Other activities include accelerated depreciation of property, plant and equipment to be disposed, the effects of currency translation as well as other changes that do not flow through restructuring expense.